ES2072722T3 - Dispositivo de regulacion automatica de nivel de una señal. - Google Patents

Dispositivo de regulacion automatica de nivel de una señal.

Info

Publication number
ES2072722T3
ES2072722T3 ES92400796T ES92400796T ES2072722T3 ES 2072722 T3 ES2072722 T3 ES 2072722T3 ES 92400796 T ES92400796 T ES 92400796T ES 92400796 T ES92400796 T ES 92400796T ES 2072722 T3 ES2072722 T3 ES 2072722T3
Authority
ES
Spain
Prior art keywords
control
level
output signal
gain
signal level
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
ES92400796T
Other languages
English (en)
Inventor
Dominique Bouriot
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alcatel CIT SA
Original Assignee
Alcatel CIT SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alcatel CIT SA filed Critical Alcatel CIT SA
Application granted granted Critical
Publication of ES2072722T3 publication Critical patent/ES2072722T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
    • H03G3/301—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers the gain being continuously variable
    • H03G3/3015—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers the gain being continuously variable using diodes or transistors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
    • H03G1/0035—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements
    • H03G1/007—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements using FET type devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
    • H03G1/0088—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using discontinuously variable devices, e.g. switch-operated
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/001—Digital control of analog signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Circuits Of Receivers In General (AREA)
  • Details Of Television Scanning (AREA)
  • Stereophonic System (AREA)
  • Reverberation, Karaoke And Other Acoustics (AREA)

Abstract

DISPOSITIVO DE AJUSTE AUTOMATICO DEL NIVEL DE UNA SEÑAL. ESTE DISPOSITIVO DE AJUSTE AUTOMATICO DEL NIVEL DE UNA SEÑAL INCIDENTE (I) QUE PROPORCIONA EN RESPUESTA UNA SEÑAL DE SALIDA (S) DE NIVEL SENSIBLEMENTE IGUAL, SEAN CUALES SEAN LAS VARIACIONES DE LA SEÑAL INCIDENTE, EN UN NIVEL CONSTANTE EVENTUALMENTE SELECCIONABLE ENTRE "N" NIVELES POSIBLES (N, NUMERO ENTERO SUPERIOR A 1) EN FUNCION DE UN CONTROL EXTERNO DE GANANCIA (CE) APLICADO A DICHO DISPOSITIVO, COMPRENDE UN CIRCUITO (200) DE AJUSTE DEL NIVEL EVENTUALMENTE CONTROLADO POR DICHO CONTROL EXTERNO DE GANANCIA Y DOTADA ADEMAS DE UN PRIMER BUCLE DE CONTROL DE GANANCIA (30) QUE ELABORA UN CONTROL EN FUNCION DEL NIVEL DE LA SEÑAL DE SALIDA Y DE UN SEGUNDO BUCLE DE CONTROL DE GANANCIA (16) QUE ELABORA UN CONTROL EN FUNCION DE LA AMPLITUD INSTANTANEA DE LA SEÑAL DE SALIDA, PARA PROPORCIONAR,EN RESPUESTA A DICHA SEÑAL INCIDENTE DICHA SEÑAL DE SALIDA.
ES92400796T 1991-03-26 1992-03-24 Dispositivo de regulacion automatica de nivel de una señal. Expired - Lifetime ES2072722T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9103645A FR2674707B1 (fr) 1991-03-26 1991-03-26 Dispositif de reglage automatique de niveau d'un signal.

Publications (1)

Publication Number Publication Date
ES2072722T3 true ES2072722T3 (es) 1995-07-16

Family

ID=9411133

Family Applications (1)

Application Number Title Priority Date Filing Date
ES92400796T Expired - Lifetime ES2072722T3 (es) 1991-03-26 1992-03-24 Dispositivo de regulacion automatica de nivel de una señal.

Country Status (5)

Country Link
EP (1) EP0506547B1 (es)
AT (1) ATE122509T1 (es)
DE (1) DE69202382T2 (es)
ES (1) ES2072722T3 (es)
FR (1) FR2674707B1 (es)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6363127B1 (en) 1999-06-23 2002-03-26 At&T Wireless Services, Inc. Automatic gain control methods and apparatus suitable for use in OFDM receivers

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2097619A (en) * 1980-07-31 1982-11-03 Min Mart V Stage converter of electric signals
JPS5937716A (ja) * 1982-08-26 1984-03-01 Seiko Instr & Electronics Ltd 自動利得制御回路
US4531229A (en) * 1982-10-22 1985-07-23 Coulter Associates, Inc. Method and apparatus for improving binaural hearing
US4771472A (en) * 1987-04-14 1988-09-13 Hughes Aircraft Company Method and apparatus for improving voice intelligibility in high noise environments

Also Published As

Publication number Publication date
EP0506547B1 (fr) 1995-05-10
DE69202382D1 (de) 1995-06-14
EP0506547A1 (fr) 1992-09-30
FR2674707B1 (fr) 1993-06-04
ATE122509T1 (de) 1995-05-15
DE69202382T2 (de) 1995-09-14
FR2674707A1 (fr) 1992-10-02

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